Brush-making machine



July 17, 1928. 1,677,672

W. S. ELLIOT ET AL BRUSH MAKINGIACHINE Filed Feb. 24, 1 925 2Sheets-Sheet 1 lNviiN+mvsz WN MM #4 @JWMMM Mr July 17, 1928. 1,677,672 ws. ELLIOT ET AL BRUSH MAKING cums Filed Feb. 24, 19 25 2 Sheets-Sheet 2Patented July 17, 1928.

UNITED .s AT s PATENT OFFICE.

WILLIAM S. ELLIOT AND WILLIAM NOBLE, OF NORTHAMPTON, MASSACHUSETTS, AS-

SIGNORS TOPRO-PHY-LAC-TIC BRUSH COMPANY, OF NORTHAMPTON, MASSACHU-SETTS, A CORPORATION OF MASSACHUSETTS.

BRUSH-MAKING MACHINE.

Application filedlebruary 24, 1925. Serial No. 11,090.

, This invention relates to brush machines of the type shown in thepatent to Schwartz No. 1,125,187, dated January 19, 1915, and hasparticularly to do with the mechanism for feeding the ribbon of metaltothe punch which forms the anchors and for actuating the pusher-whichsets the anchors after they have been formed by the punch; Since theanchor is minute, extreme accuracy is required and inmachines asheretofore constructed, difiiculty has been experienced with mechanismfor these purposes since the mechanism has been complicated.

The object of the present invention is, therefore, to provide simplemechanism for operating the. grippers which feed forward the ribbon tothe punch and that which operates the pusher which sets the anchors.Also to provide mechanism which will permit the machine to be run atmuch increased speed without loss of accuracy.

Accordingly in the machine embodying the present invention we havedevised a combination of cams which are rotated constantly and whichgive to the several mechanisms rapid and easy motions and which, onaccount of the simplicity of the construction, is not affected by wearso that the accuracy of the machineremains the same.

The invention will be fully understood from the following descriptionwhen taken in connection with the accompanying drawe ings, and the novelfeatures thereof will be pointed out and clearly defined in the claimsat the close of this specification.

In the drawings.

Fig. 1 is a top plan view Fig. 2 is a front elevation of the parts shownin Fig. 1.

Fig. 3 is a section taken on line 3-3 of Fig. 1.

- Referring to the drawings:

At A is shown the punch, at B the bristle reservoir, at C the nose ofthe plugger or tufter and at D a strip of metal from which the anchorsare cut. The metal ribbon D is fed forward into the punch by a pair ofswinging grippers E and F. The tufter is mounted on .a slide H, thepusher which sits the anchors being shown at I. At K is shown thenotched needle which enters the bristle reservoir B and separates theproper number of bristles to form the tuft carrying itfto the channel inthe tufter. The parts heretofore described are old and well knownbeingsubstantially as shown in the patent to Schwartz already mentioned..The pusher,

plugger slide, strip feed and needle all cooperate with each other andtherefore must be positioned and timed with extreme accuracy to enablethe machine to be run at high speed. i i

The V feeding mechanism for the strip D and operating mechanism for thepick K driven by a sprocket 16. The cam acts' through a slide 11 whichcarries a cam-roll 10 at one end thereof, the other end being connectedby a link 12 to a lug 13 on the upper gripper E. I

This cam also is provided with a groove [2 to receive the cam roll 17.,which operates the pick K. The cam 14 is therefore in effect two cams,one of which operates the strip feed, and the other of which moves thepick,

thereby supplying bristles to the tufter. 1

The cam roll'17 is carried on the end of :1. lug forming part of a slide18 to which the rear end of the pick Kis adj ustably attached by meansof screws 19 and 20. At 9 is shown screw actuated mechanism foradjusting lengthwise the position of the pick relative to the cam. Bythis means a very fine adjustment of the needle can be made so that thenotch therein will be in exact registration with the channel through theplugger tube and thereby the certain transfer of the tufter bristlesfrom the notch in the pick to the tufter will be assured. The lowergripper F is connected by a ball and socket joint, as shown at 80, withone arm of a bell-crank 21 pivoted at 22 and having on its lower end acam roll 23. Thiscam roll rests against a cam 24 carried on a shaft 25which is driven in proper time with the other parts of the machine.

Referring now to the mechanism for operating the tufter or plugger C andpusher I, there is shown in Fig. 1 a shaft 26 which is also constantlydriven by a sprocket 34. This shaft carries a plate cam 27 having agroove in the face thereof. The walls of this groove engage a roller 28carried on one end of an arm 29 which is upwardly curved and offset, asshown in Figs. 1 and 3. The other end of this arm is connected bypins30-and 31 to the rear end of the plugger slide H. Nuts 32 and 33 areprovided to adjust the position of the plugger slide relatively to thearm 29 and consequently to the cam 27. In this way the limit of forwardmovement of the nose of the plugger or tufter can be adjusted. Thesprocket 3 1 which drives the shaft 26, also acts as a crank disk toactuate a connecting rod 35, the front end of which is connected to alever 36 which carries a bearing pin 37 for the rear end of the pusherI. These parts move in a slot 38 in the plugger slide which is cut awayas shown in the drawings to give the necessary clearance. It will,therefore, be seen that as the shaft 26 is rotated the plugger slide IIwill be re ciprocated being given the motion by the layout of the cam 27and that simultaneously the pusher will be reciprocated by the sprocketor crank disk 34: and that both the plugger slide and pusher will havesmooth and easy motions enabling the machine to be run at. high rates ofspeed. It will also be seen that the construction of the operatingmechanism for the strip feed, needle, plugger slide and pusher doawaywith the springs and long levers which in the original Schwartz machinelimited the speed of the machine and diminished its accuracy and slidefor separating a tuft of bristles, and a rotary cam'coacting directlywith said slide for operating the same.

2. A brush making machine comprising a rotary cam, a gripper for feedingan anchor forming :metal strip, and a slide connected to said-gripperand'operated by saidcam. In testimony whereof We affix our signatures.

WILLIAM S. ELLIOT. WILLIAM NOBLE.

